diff --git a/build-constraints.yaml b/build-constraints.yaml
index 16e1159c..37905983 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -6895,6 +6895,9 @@ packages:
       # https://github.com/commercialhaskell/stackage/issues/5941
       - http-api-data < 0.4.3
 
+      # https://github.com/commercialhaskell/stackage/issues/5956
+      - pandoc < 2.13
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of